What is highway guardrail?

According to chinese GB stanard, Guardrail can be sorted into B,A,SB,SA,SS 5 grades by anti-bump grade. Highway guardrail is typical cold formed steel products.
2-wave guardrail common size: 4320mm×310mm×85mm×3/4mm, post:114/140 mm×4.5mm,
3-wave guardrail common size: 4320mm×506mm×85mm×3/4mm, post: 130mm×130mm×6mm

System principle:
1,Wave shaped guardrail, it is a corrugated steel fence panels to each other by stitching a continuous post supporting the whole structure.
2,It uses soil base, column, beam deformation to absorb impact energy and force out of control vehicle to change direction and return to the normal driving direction, to prevent the vehicle runs off the road, to protect the vehicles and passengers, to reduce losses caused by the accident.
3,Waveform phase and flexible steel beam guardrail, and a strong ability to absorb crash energy, and has good sight induced features can be coordinated with the road alignment, beautiful appearance, can be used in a small radius curve, the defects were easy to replace.

Features:
With good impact resistance, low cost, long life, higher security, environmental protection, etc

Material:
High-quality steel plate treated with preservatives